[#53669] Change default view for meetings module to upcoming invitations

[mrmir]

https://community.openproject.org/work_packages/53669

[aaron-contreras]

Very nice. There's only one little caveat (I checked though and it is already a bug on the dev branch so it wasn't introduced by this PR).

On "light mode" the menu item is properly highlighted:

On "High contrast mode" the menu items do not highlight when selected:

The acceptance criteria on the work package specifies that the menu entry should be highlighted (but again, probably was written up from a "Light" mode and not a "High contrast mode"). If you could fix this, great :) but it was already a bug present on the current dev branch.

[mrmir]

I poked around for a bit but couldn't fix it quickly, so I'll create a separate bug ticket for this issue. It seems to be happening everywhere, and not just in meetings, so I think that makes more sense to do anyway.